Directions and Use:1. Dip entire strip into water, swirl three times and remove immediately.2. Hold strip level (do not shake off excess water).3. Starting from the thumb compare strip colours with colour chart on label, beginning immediately with total alkalinity, then free chlorine and finally, after 15 second’s, pH. Keep in this order to aid colour reactivity time.

Directions and Use:1. Dip entire strip into water, swirl three times and remove immediately.2. Hold strip level (do not shake off excess water).3. Starting from the thumb compare strip colours with colour chart on label, beginning immediately with total alkalinity, then free chlorine and finally, after 15 second’s, pH. Keep in this order to aid colour reactivity time.